Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Basinger O'Brien, PA-C
Physician Assistant in Tumwater, WA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639332844
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Registry record
Entity type Individual (Type 1)
Name John Basinger O'Brien
Credential PA-C
Sex Male
Practice address 6981 Littlerock Rd Sw, Suite 101, Tumwater, WA, 98512
Phone (360) 943-3633
Fax (960) 528-4643
Enumeration date Jul 8, 2008
Last updated in NPPES Jan 31, 2012
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10003178 (WA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify John O'Brien's NPI record?
Cross-check NPI 1639332844 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639332844 active?
Yes, as of the latest NPPES snapshot, NPI 1639332844 is active (record last updated 2012-01-31).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-31.